Device



F. s. MILLER.

FUEL SAVING DEVICE.

APPLICATION FILED AUG-I2, I920.

Patented 001;. 4, 1921.

' lNVE/VTOR Pea/we 5 M/LLEE.

BY W ATTORNE ITED snares FRANK S. MILLER, OF ST. LOUIS, MISSOURI. fl

FUEL-SAVING- DEVICE.

Specification of Letters Patent.

Patented Oct. at, 1921.

Application filed August 12, 1920. Serial No. 403,106.

To all whom it may concern:

Be it known that I, FRANK S. MILLER, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in F uel-Saving Devices, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertainsto make and use the same.

This invention relates to a device that is adapted to be stationarily mounted inside of a flue at the point where a smoke pipe enters the flue and in sufliciently close proximity to the end of. said pipe to cut down the draft in the pipe and thus efi'ect a saving in the consumption of the fuel used in the stove or heating apparatus from which the smoke pipe leads.

Figure l of the drawings is a perspective view of a device constructed in accordance with my invention; and

Fig. 2 is a vertical sectional view illustrating said device arranged in operative position in a flue.

Referring to the drawings which illustrate the preferred form of my invention, A designates a member, preferably a disk-shaped piece of metal, which is adapted to be stati onarily mounted inside of a flue B opposite the inner end of a smoke pipe C which proj ects inwardly through a hole in one wall of said flue. The member A is arranged at right angles to the longitudinal axis of the smoke pipe 0, and is spaced far enough away from the inner end of Said pipe to permit the products of combustion to escape from the pipe into the flue B, but in sufficiently close proximity to the end of the pipe to cutdown the draft in the pipe. Various means can be used for supporting the member A in operative position, but I prefer to equip said member with arms 1 arranged at an angle to same and adapted to extend through the hole in the wall X through which the smoke pipe C passes. The arms 1 are preferably provided at their free ends with flanges 0r laterally projecting portions 2 that bear against the outer face of the wall X and thus determine the position of the member A inside of the flue. The arms 1 can either be integrally connected to the member A or they can be formed from two strips of metal bent to form two substantially yoke-shaped members whose cross pieces 3 are arranged in superimposed relation at right angles to each other and connected together "by a fastening device 4 which also serves to connect the member A to said cross pieces.

To install the device the arms 1 are inserted in the pipe hole in the wall X and then pushed inwardly until the flanges 2 at the free ends of said arms bear against the outer face of th wall, as shown in Fig. 2. Thereafter the smoke pipe C is inserted in the pipe hole in the wall and pushed inwardly until the inner end of said pipe is spaced slightly away from the member A.

A device of the construction above described is easy to install, it is inexpensive to manufacture, and I have found that it effects a considerable saving in the consumption of fuel used in the stove or heating apparatus with which the device is used, due to the fact that the member A reduces the draft in the smoke pipe that leads from said apparatus.

Having thusdescribed my invention, what I claim as new and desire to secure by Letters Patent is:

A draft reducer for stove pipes, consisting of a sheet metal disk that is adapted to be stationarily mounted inside of a flue opening opposite to and spaced at vay from the inner end of a stove pipe that projects into said opening through one wall of the flue, a plurality of right angularly-disposed arms on said disk that extend longitudinally of the stove pipe between said pipe and the opening in the flue wall through which the stove pipe projects, and laterally-projecting portions on the ends of said arms that lap over the front side of said flue wall and thus prevent said disk from moving away from the end of the stove pipe.

FRANK s. MILLER. 

